I think, if Sony owns the rights to it, a standalone game with the original rules would be great. The main things I loved were the direction based attacks, the variety of cards, and the elemental/flippable game tiles that could affect a lot of different classes.
They made a PSP version of the game I used to play WAY more than the PS3 version, but I think the people who bought the full game had a sour taste in the mouth when they found out you could print the right code and "own" whatever characters that were in the booster packs.
Oh yeah definitely recommend checking it out, I may have to get an emulator because my PSP is deep in my closet in several different pieces currently. I've been itching to play Metal Gear Ac!d anyway, so this may be my excuse.
I've never researched a PSP emulator for Android but I may now so I can still play on the go.